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Confused, need advice

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Old 08-03-2004, 01:28 PM
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Ben R.
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Default Confused, need advice

I am ready to move on from the RTF planes that come with a TX.
My problem is the overwhelming choice of TXs out there, and not really finding a good explanation of what each feature is for. I want to get a TX that will not break the bank for use with both Heli and 3D type aircraft. I am planning on getting a Piccolo Heli, and a Pigi 3D.

My short list of TXs I think might fit my needs are the JR XP8103, or the HiTech Eclipse 7.

My questions are;

Why the heli/air versions of these radios? what does one give you over the other since in the descriptions they are the same?

Is it just pre-programmed adjustments for the type of craft?

Is it hard set a air TX up for Heli? (and visa versa)

Where can I find out about all these new terms and what do they mean? i.e. !QUOT!EPA's all Channels!QUOT! !QUOT!Dual Rates!QUOT! !QUOT!Exponential Rates!QUOT! !QUOT!CCPM mixing!QUOT!

Does anyone have a recommendation on a different Manufacture that may have a TX to fit my needs? (Sub $500.00)

Thanks

Ben
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Old 08-03-2004, 02:02 PM
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Crashem
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Default RE: Confused, need advice

The Heli/Air Versions of the radios provide you with mixes that are specific to each type of aircraft also when I bought my JR 622 for my Heli it included 5 servos and a 1100mah airborne pack instead of 600mah. However I am still able to use it i.e program it for fixed wing aircraft.

If 500.00 or less is your price range the JR 8103, Futaba 9c or Airtronics Stylus will all do just about anything you want.
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Old 08-03-2004, 02:07 PM
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JohnW
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Default RE: Confused, need advice

I'd add the 9CAP to your list to look at.

Many computer radios come with built in software for both heli and planes. I believe the ones you listed do this as well as the 9CAP. The diff between acro/heli versions is generally just the added goodies. Typically heli versions will have an extra servo and they take the detents off the throttle stick and the default model type in the radio will be set to heli. Other than this, the acro/heli radios are identical, this is why the identical descriptions. So, if the radio supports both acro/heli, it is no big deal to set either model type up. However, if the radio doesn't support both model types, it can be a bit of a pain to set the non-supported model type up.

EPA - end point adjustment, similar to ATV in futaba

Dual Rates, D/R - adjustment for sensitivity of control, i.e. adds or reduces total throw. Kinda like beaing able to change your EPA with the flip of a switch.

Expo - Nonlinear mix most often used to desensitize center stick so small adjustments in flight are easier/smoother.

CCPM mixing - special swashplate mix in helis. Don't really need to worry about this one unless your heli uses a CCPM swashplate.

For more info, download the manuals for the radios. The description of the above and more is in the manuals. The JR stuff can be found at www.horizonhobby.com Hitech at www.hitecrcd.com and Futaba at www.futabarc.com
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Old 08-03-2004, 02:25 PM
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Default RE: Confused, need advice

Thank you for the info, this is starting to make more sense now
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Old 08-03-2004, 02:58 PM
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Default RE: Confused, need advice

Another question.

I found a Futaba 9CAP (ebay) for just over $150, but it does not come with the "FP-TP Module" Doing a quick search on Google yeilds very little results for that, how hard is it to get the Frequency Module? and what is a good price on it?

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Old 08-03-2004, 05:01 PM
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Default RE: Confused, need advice

check this link for Futaba frequency module's.

[link=http://www.servocity.com/html/futaba_air_tx_crystals.html]click me[/link]

Thet are selling the 9C without servos and recever for [link=http://www.servocity.com/html/9ca_systems.html]$249.99[/link] and free shipping!
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Old 08-03-2004, 05:09 PM
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Default RE: Confused, need advice

ORIGINAL: mstroh3961

check this link for Futaba frequency module's.

[link=http://www.servocity.com/html/futaba_air_tx_crystals.html]click me[/link]

Thet are selling the 9C without servos and recever for [link=http://www.servocity.com/html/9ca_systems.html]$249.99[/link] and free shipping!
SWEET Thank you.

Edit to add new question.

If I am reading this right the 9CA/9CH is an FM modulation only TX right? While the 9CAP can do PCM as well as "normal" FM right?

Is the PCM mainly for high interferance areas?
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Old 08-03-2004, 05:13 PM
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Default RE: Confused, need advice

JR has a promo on and is selling the 8103 complete with receiver and digital servos for 379. Does both choppers and aircraft.
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Old 08-03-2004, 05:23 PM
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Default RE: Confused, need advice

ORIGINAL: Ben R.

ORIGINAL: mstroh3961

check this link for Futaba frequency module's.

[link=http://www.servocity.com/html/futaba_air_tx_crystals.html]click me[/link]

Thet are selling the 9C without servos and recever for [link=http://www.servocity.com/html/9ca_systems.html]$249.99[/link] and free shipping!
SWEET Thank you.

Edit to add new question.

If I am reading this right the 9CA/9CH is an FM modulation only TX right? While the 9CAP can do PCM as well as "normal" FM right?

Is the PCM mainly for high interferance areas?
No the 9C is both PPM and PCM selectable in the menu.
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Old 08-03-2004, 05:44 PM
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Default RE: Confused, need advice

ORIGINAL: mstroh3961

No the 9C is both PPM and PCM selectable in the menu.
I see that now that I opened my eyes and read the ad


Thanks for all the answers
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